Transitional image for a portion of a display screen



FIG. 1 is a front view of the first image of a transitional image for aportion of a display screen showing my new design; and,

FIG. 2 is a front view of the second image thereof.

The appearance of the image transitions sequentially between the imagesshown in FIGS. 1-2. The process or period in which the first imagetransitions to the other forms no part of the claimed design. The brokenline showing of the portion of a display screen in both views is forillustrative purposes only and forms no part of the claimed design.

The ornamental design for a transitional image for a portion of adisplay screen, as shown and described.